Results 11 to 20 of about 166,388,471 (186)

Location errors in time of arrival (TOA) and time difference of arrival (TDOA) systems [PDF]

open access: yes, 1977
It is shown that the covariance matrix of object location errors is identical for time of arrival (TOA) and time difference of arrival (TDOA) systems if the inverse of the covariance matrix of TOA (TDOA) errors is used as a weighting matrix. Also, with this weighting the location errors statistics do not depend on the particular difference pairs in the
Aronson, Eugene A.
openaire   +3 more sources

A New Method of D-TDOA Time Measurement Based on RTT

open access: yesMATEC Web of Conferences, 2018
In this paper, a novel difference-time difference of arrival (D-TDOA) time measurement method based on round-trip transmission (RTT) is proposed. The accuracy of time measurement is critical for high accuracy positioning, yet the traditional time ...
Zhou Junjie, Shen LiangJie, Sun Zhenlong
doaj   +2 more sources

TDOA, Frequency and Phase Offsets Estimation Taking Into Account Carrier Phase of Arrival [PDF]

open access: yesRadioengineering, 2017
This paper deals with estimation of time difference of arrival (TDOA) and phase and frequency offsets between the channels in a receiving system with two distributed time synchronized, but phase and frequency unlocked channels.
M. Janjic, N. Vukmirovic, M. Eric
doaj   +3 more sources

Time-Difference-of-Arrival (TDoA) Based Wireless Indoor Localization Using an Effective Hybrid Time Synchronization [PDF]

open access: yes, 2019
Wireless indoor localization is a major challenging issue for state-of-the-art technologies and applications which require precise and robust location information. Many restrictions affect the performance of the wireless indoor localization, for instance, intricate building architecture, decorated appliances inside the building, and inaccessibility and
Yuzana Hlaing, Nyein Aye Maung Maung
core   +7 more sources

Performance evaluation on extended neural network localization algorithm on 5 g new radio technology. [PDF]

open access: yesSci Rep
With the rapid growth of fifth-generation (5G) networks, there is an increasing demand for high-precision localisation, achieving which is a major challenge in real-time applications in dynamic and noisy environments.
R D, Markkandan S, Arjunan VK.
europepmc   +2 more sources

Accurate angle-of-arrival measurement using particle swarm optimization [PDF]

open access: yes, 2010
As one of the major methods for location positioning, angle-of-arrival (AOA) estimation is a significant technology in radar, sonar, radio astronomy, and mobile communications.
Ho, Kwok Shun   +5 more
core   +4 more sources

Joint TDOA, FDOA and PDOA Localization Approaches and Performance Analysis

open access: yesRemote Sensing, 2023
Multi-station joint localization has important practical significance. In this paper, phase difference of arrival (PDOA) information is introduced into the joint time difference of arrival (TDOA) and frequency difference of arrival (FDOA) localization ...
Jinzhou Li   +7 more
doaj   +1 more source

Fast TDOA and FDOA Estimation for Coherent Pulse Signals

open access: yesInternational Journal of Antennas and Propagation, 2022
Time difference of arrival (TDOA) and frequency difference of arrival (FDOA) have been widely used for localizing temporally continuous signals passively.
Yan Liu, Fucheng Guo
doaj   +1 more source

TDOA –FDOA method for tracking of a moving target in a distributed sensor scenario [PDF]

open access: yesITM Web of Conferences, 2023
Tracking of an underwater target in ocean environment is very important in both military and civilian applications. This paper focuses on the localization and tracking of a moving target by a passive multi-static sonar system using TOA, Time Difference ...
George Sherly, Muralikrishna P.
doaj   +1 more source

Improving the Robustness of Time Difference of Arrival Estimation Based on the Energy Center of Gravity Rearrangement

open access: yesSensors, 2023
An accurate estimation of the time difference of arrival (TDOA) is crucial in localization, communication, and navigation. However, a low signal-to-noise ratio (SNR) can decrease the reliability of the TDOA estimation result.
Peng Zhang   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy